R 80-7

1978 BMW R 80-7 Technical Analysis & Specification Breakdown

Built around BMW's sport touring motorcycle platform, the 1978 BMW R 80-7 utilizes a 797 cc (48.6 cu in) air-cooled two cylinder boxer, four-stroke layout. In factory specification, peak output is rated at 55 HP (40.1 kW) at 7,000 rpm, transferring power to the rear wheel through a 5-speed gearbox and shaft drive (cardan) final drive. With a specific output of 69 HP per liter, the engine character is indicating a tractable, stress-free state of tune focused on everyday usability and broad torque delivery.

On the scales, the R 80-7 measures 236 kg (520 lbs) wet (curb), translating to a power-to-weight ratio of 0.23 HP/kg (4.29 kg per horsepower). The 24-liter (6.3 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 186 km/h (116 mph).

Within MotoLibrary's BMW archive, this model family spans 3 indexed model years from 1977 to 1979, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.